Type-writing machine.



W. R. FOX.

TYPE WRITING MACHINE.

APPLICATION FILED JAN. 2. 1915.

'Patented Nov. 27, 1917..

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W. R. FOX. TYPE WRITING MACHINE? APPLICATION FILED JAN. 2. I915.

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TYPE WRITING MACHINE Na X 5 Km m 6 2H M R W EDM n NE W P W M w w m m M llii nnrn sans ATENT oration WILLIAM R. FOX, 0F GRAND RAPIDS, MICHIGAN.

TYPE-WRITING MACHINE.

Application filed January 2, 1915.

To all whom it may concern."

Be it-known that 1, WILLIAM R. Fox, a citizen of the United States, residing at the city of Grand Rapids, county of Kent, and State of Michigan, have invented certain new and useful Improvements in Type- Writing Machines, of which the following is a specification.

This invention relates to improvements in type writing machines.

The objects of this invention are:

First, to provide an improved construction of universal bar for actuating the escapement mechanism and the ribbon vibrating mechanism, said universal bar being carried by the type bar segment and disposed so as to be actuated by the type bars as they approach printing position.

Second, to. provide an improved ribbon vibrating mechanism which is actuated in advance of the escapement mechanism as the type bars approach printing position.

Third, to provide an improved ribbon vibrating mechanism for use with a bi-chrome ribbon and means-for causing one color band ,of the ribbon or the other to be thrown to printing position or for shifting the parts to such a position that the ribbon vibrator will not be operated as for use in cutting stencils.

Fourth, to up ovide an improved stop means in connec 'ion with the ribbon vibrating mechanism, to'prevent overthrow of the ribbon vibrator.

Fifth, to provide an improved ribbon shift mechanism for changing from one color of ribbon to the other.

Furtherobjects, and objects relating to structural details, will definitely appear from the detailed description to follow.

I accomplish" the objects of my invention by'the devices and means described inthe following specification. The invention is clearly defined and pointed out in the claims.

A structure constituting a preferred embodiment of my invention is illustrated in the accompanying drawing forming a part of this specification, in which:

Figure l is a longitudinal, sectional eleva- Specification of Letters Patent.

Patented Nov. 2?, il ilto Serial No. 246-.

tion view through the central part of a typewriter showing a' finger lever and connections from said finger lever to the type bar, the universal bar and the supporting means therefor, the ribbon vibrating mechanism, the escapement mechanism, and the ribbon shift mechanism, the type bar being shown by dotted lines raised to printing position. Only those parts of a typewriter are shown, which are essential to an understanding of my invention as I have not deemed it necessary to illustrate the other well known parts of a typewriter.

Fig. H is a fragmentary top plan view of a type bar segment showing the universal bar carried thereby and the connections from said universal bar to the escapement mechanism and the ribbon vibrating mechanism, the top plate of the machine and a portion of the ribbon vibrating mechanism being omitted for clearness.

Fig. H1 is a perspective view of the universal bar and the supporting means therefor, detached from its position on the type bar segment.

Fig IV is a fragmentary detail sectional elevation View, similar to Fig. 1, showing the ribbon vibrating mechanism set to bring the red portion of the ribbon to printing position.

Fig. V is a fragmentary sectional view similar to Figs. l and IV" showing the ribbon vibrating mechanism set for stenciling so that the ribbon vibrating lever will not be actuated.

Fig. V1 is an enlarged fragmentary, de-

tail view corresponding to a part of Fig. li, showing the mechanism for actuating the ribbon vibrator, its engagement with the rear of the trip pin head and the stops to prevent overthrow of the ribbon.

Fig. VH is a fragmentary, enlarged view similar to Fig. Vii showing in detail the shiftable selector 68 and its connection with the arm of the bell crank 53 of the ribbon vibrating mechanism.

' Fig. VH1 is a detail, sectional view on the line 8-8 of Fig. Vllll' showing this connection in further detail.

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Fig. IX is an enlarged, detail view in side elevation of the ribbon shift mechanism,

showing the same set to bring the black portion of the ribbon to printing posltlon.

set to bring the red portion of the ribbon to printing position.

Fig. XI is a view similar to Figs. IX and X showing the ribbon shift mechanism set for stenciling so that the ribbon will not be vibrated'to lift the same to printing position.

not described at length in this specification as they form the subject matter of my Patent No. 1,214,294, issued January 30, 1917.

The frame 1 carries a casting 2, the finger levers 3' having keys 5 being fulcrumed at their rear ends on thefulcrum wire 4 carried by said casting 2. Springs 6 connected to said finger levers exert tension to ull them upwardly and to return the type ars to normal position. Rock levers 7 are fulcrumed on the fulcrum wire 8, carried by the casting 2, said rook levers being connected at 9 to the fin'ger levers 3. A type bar segment 10 is shiftably supported in a manner well known in' theart, said type bar segment being provided with an upper comb formed on the arc of a circle in which is disposed a fulcrum wire 11 on which the type bars 12 are fulcrumed, the rear of said type bars being provided with cam slots 13.

fulcrum wire 15 is carried by the lower comb of the type bar segment and cam levers 14 are fulcrumed on said wire 15, the u per ends ofv said cam levers being connecte by pivots 16 with the pitman links 17, the pivots 16 being disposed in the cam slots 13 of the type bars. The rear ends of the pitman links 17 are connected to the up er ends of the rock levers 7 by pivots 18. T is part of my structure is shown described and claimed in my patent abovereferred to.

A bracket 19 is secured to-the rear bracket having rear-wardly projecting arms 21 between the ends of which the rock shaft 22 is journaled. The rock shaft is provided with a pair of downwardly projecting arms Fig. XII is a fragmentary detail view in 'tor 50, through which the ribbon is thetype bar segment by the screws 20, said 23 to the lower ends of which ears 24, carried at the rear end of the universal bar frame 25, are pivotally secured. The curved universal bar 26 is carried by the forward.

end of the frame 25 in such a position adjacentthe pivots of the type barsas to be engaged by the shoulder 28 on the type bar 12 as it approaches printing position. This forces the universal bar 26 and the frame 25 rearwardly, as shown by dotted lines in Fig. I." A finger 27 projects forwardly from the frame 25 through a suitable slot in the bracket 19 and assists in guiding and supporting the frame 25. A block 29 is carried by the rear of the frame 25 and a ush pin 30 has its-rear end 31 threaded into said block 29 whereby the position of said push pin relative to said frame may be adjusted.

A bracket 32' is securedto the frame 1 provided with ears 33v in which the trip pin 34 is slidably mounted. Said trip pin has at its forward end a broad is engaged by the rear end of the pin 30. Escapement mechanism comprising the feed wheel 361's secured to the top ofthe frame and the escapement pawl 37 is actuated by the lever 38, the lower end of said lever being engaged by the rear end of the trip pin 34 to actuate the escapement mechaat 41 in a bracket 42 carried by the top plate 43 secured to the frame. The top plate 43 has, at'its forward side, downwardly extendingears 44. -The ribbon vibrator guide 45 is provided at its lower end with ears 46 which are pivotally connected at 47 to the ears 44 on the top plate 43. A spring 48 connected to the ears 46 and to the top plate tends to pull the ribbon vibrator guide toward the top plate. The upper end of the ribbon vibrator guide is disposed adjacent to the platen 49. The ribbon vibraguided, is slidably mounted in the guide 45 and the lower end of the vibrator 50 is connected at 51 to the forward end of the lever 40. Lever 40 is in advance of the pivot 41 to accommodate the rock shaft 22 on the universal bar when head 35 which 7 provided with a notch 52 just- The bell crank 53 is pivotally mounted at 54 on the frame and is provided with a forwardly projecting arm having a forked end 55 which engages a pin 56 carried by the rear end of the vibrator lever 40, as clearly shown in Fig. I. The bell crank 53 has a rearwardly projecting arm 57, the rear end of which is connected by spring 58 to an arm 59 pivotally mounted at 60 on the bracket 32. Arm 59 is provided with a slot mamas 61 in which the set screw 62, carried by the bracket 32, is disposed. By this means, arm 59 can be adjusted to regulate the tension of the spring 58. Bell crank 53 has a downwardly extending arm 63 provided with a notch 64, a tail 65, and a pair of shoulders 66 and 67. A selector 68 is pivoted at 69 on the arm 70 and a plate 71 is secured to the upper end of said selector and'spaced therefrom by the spacing block 72 and the shoul dered rivet 73 which is carried by the plate 71 and the upper end of the selector 68. The lower end of the arm-63 of the bell crank 53 is disposed between said plate 71 and the upper end of the selector 68 as shown in Fig. VII, so that in one position of the selector 68, the rear of the rivet 73 engages the shoulder 66 on the arm 63. Selector 68 is shiftable to bring rivet 73 in line with notch 64 or shoulder 67. A tail 74 on selector 68 is adapted to engage a stop 7 5, struck up from the bracket 32, when the selector 68 is forced rearwardly upon the actuation of the universal bar. The arm 70 is secured to a pin 76 journaled in the bracket 32, and link 77 is also secured to said pin 76, so as to turn therewith. A forwardly extending link 78 is pivotally connected at its rear end to the link 77 by the pivot 79.

A bell crank lever 82 is carried by the frame 1 on the pivot 83 and carries a key 84 at its forward. end. The downwardly depending arm 81 of'the bell crank 82 is.

connected by the pivot with the forward end of the link 78, so that said link 78 is reciprocated by the rocking of the bell crank lever A. spring 85 connects the lower end of the selector 68 below the pivot 69 with an ear 86 projecting from the arm 70, as shown in'FigsI, IV and V. The spring 85 together with the spring 58 acts to return the trip pin to normal position after it has been forced rearwardly. The bell crank 82 has a rearwardly projecting arm 98 which carries a'pin 96. The bell crank 87 is pivoted to the frame at 88 and carries a key 89. The downwardly extendingarm 90 of the bell crank 87 is provided with a triangular opening 91 therein, two sides of said opening being straight while the third side 92 is slightly concave, as

shown clearly in Fig. XII. The arm 98 of the bell crank 82 extends in front of arm 90 of the bell crank 87, as shown in Figs. TX and XI inclusive. The pin 96 carried by the-arm 98 is disposed-in said triangular opening 91 as clearly shown in Figs. IX and XII inclusive. A lever 93 is pivoted to the frame at 94 and is disposed in front of -the levers 82 and 87 and carries a key 95 at the forward end thereof. Lever 93 is provided with an oblong slot 97 in which the pin 96 carried by the arm 98 of the lever 82 is disposed.

The rear end of the rearwardly projecting arm 98 is provided with a laterally turned lug 99 to which one end of a U- shaped spring 100 is secured, the other end of said spring being secured to a pin 101 carried by the frame. A pin 102 is carried by the lower end of the arm 90 of the lever 87 and one end of a U-shaped spring 103 is secured to said pin 102, the other end of said spring being secured to a pin 101 carried by the frame.

From the description of the parts given above, the operation of this device should be very readily understood. The bracket 19 secured to the shiftable type bar segment carries the universal bar frame 25 which is mounted between the ends of the arms 23 of the rock shaft 22, pivoted between the rearwardly projecting arms 21 of the bracket 19. This frame carries the curved universal bar 26 in such relation to the type bar segment that the shoulders 28 on the type bars 12 strike said universal bar when the type bars are raised to printing position. As the shoulder 28 strikes the universal bar, the same is forced backward as shown by dotted lines in Fig. l. Push pin 30, which is carried by the frame 25, moves back as the universal bar is forced back and since the rear end of the pin 30 engages the broad trip 'pin' head 35 which is carried by the trip pin 34 journaled in ears 33 on the bracket 32, said trip pin is forced back when the universal bar is actuated. The rear end of this trip pin engages the lever 38 to actuate the feed pawl 37 to operate the escapement mechanism.

The rear face of the head 35 engages the rivet 73 on the upper end of the selector 68 to force the same backward. The ribbon is vibrated by means of the ribbon vibrator lever 40. the front end of which is secured to the lower end of the ribbon vibrator while the rear end is engaged by the forked end 55 of the bell crank 53. The selector 68 may be shifted to anyone of three positions by means of the link 78, the connecting link 7 7 and the arm 70. In one position, the rear face of the rivet 73 engages the shoulder 66 on the arm 63, so as to shift the black portion of the ribbon to printing position. As the head 35 is forced back by the push pin 30, rivet 73 engaging the shoulder 66 forces the arm 63 backward and vibrates the lever 10 sufficiently to raise the black portion of the ribbon to printing position. Selector 68 may be shifted so that the rivet 7 3 engages the shoulder 67-on the arm 63. As this shoulder 67 is nearer the pivot point 54 of the bell crank, when the push pin forces back the head 35, the bell crank is given a greater movement than 1t is in the lower position so that the vibrator lever 10 has a larger movement and shifts the ribbon so as to bring the red portion thereof to printing position. The selector 68 may be shifted to an intermediate position in which into the notch 64 and does not actuate the bell crank 63 or the vibrator lever40. In this position, the ribbon is not shifted so as to be interposed between the type. and the platen. This is the posit-ion of the parts which is used in cutting stencils. A sprin 58 secured tothe arm 57 of the bell crani 53 is connected tothe arm 59 and this arm 59 may be adjusted by means of the set screw 62 and the slot 61 so as to vary the tension of the spring 58. v

The ribbon shift mechanism is actuated by keys 84, 89 and 95 on the levers 82, 87 and 93 respectively. In Figs. I and IX, the parts are shown in such a position that the black portion of the ribbon is shifted to printing position when the universal bar is actuated. In Figs. IV and X, the parts are shown in such relation that the red portion of the ribbon. is shifted to printing position. In Figs. V and XI, the parts are shown in osition for stencil cutting, so that the ribbon vibrator is not actuated when the universal bar is actuated.

The lever 87 has the triangular opening 91, one side of which is concave as at 92. This concave side is drawn on the arc of a circle having its center on the pivot 83 as shown in Figs. IX and X. Fig. IX shows the parts in such position as to shift the ribbon so that the black" portion thereof will be brought to printing position. When it is desired to bring the red portion to printing position, the key 84, marked red, is depressed. This throws the pin 96 carried by the arm 98 of the lever 82 from the lower corner of the triangular opening as shown in Fig. IX to the upper corner thereof as shown in Fig. X. This pin rides on the concave side 92 and does not effect the bellcrank lever 87. The pin is held in the corner to which it is brought by the shifting of the lever by means of the springs 100 and 103. The depression of the key 84- serves to rock the bell crank lever 82 So as to force forward the link 78 and said link 78 being connected to the short link 77, rocks the arm to force upwardly the selector 68 so as to carry the rivet 73 to its upper position where it engages the should 67 on the arm 63. IVhen the parts are in either of the positions shown in Figs. IX and X, they may be brought to stencil cutting position by depressing the key 89 at the end of the lever 87 and thus rocking the latter upon its pivot 88. In either position the edge of the rivet 73"is forced, back by its engagement with the head 35 "are actuated. The pin the triangular opening 91 engages the pin 96 and the pin is brought to the cornerof the triangular'opening shown in Fig. XI. When the parts are in the position shown in Fig. IX, when the bell crank lever 87 is rocked, the pin 96 riding on the edge of the triangular opening 91, lifts the arm 98 of the bell crank 82 and moves forward the link 78 to bring the selector 68 and the rivet 73 to the intermediate position in which it is in line with the notch 64. If the .parts are in the position shown in Fig. X, the rocking of the lever 87 causes the edge of i the triangular opening to. engage the pin 96 103 hold the parts in the position to which.

they are brought and hold the pin 96 in that corner of the triangular opening to which it has been brought by the actuation of the levers.

The universal bar is carried by the type bar segment and actuates the trip pin head 34 through whichthe escapement mechanism and the ribbon vibrating mechanism 30 and the trip pin head 35 are disconnected so that the pin 30 can be shifted relative to the head 35 as the segment is shifted without changing the operative relations of these parts.

The spring 85 engaging the lower end of the selector 68 and tending to throw the upper eiid thereof forwardly and the spring 58 connected to the rearwardly extending "arm 57 of the bell crank 53 and tending to throw the arm 63 forwardly, both serve to return the slidable trip pin 34 to its normal position after it has been forced rearwardly upon the actuation of the universal bar; The stop 75 on the \bracket 32 cotiperates with one or the other of the stops 74 and 65. The stop 74 is carried by the upper end of selector 68, and when said selector is in its lower position with the rivet 73 engaging the shoulder 66, the rearward move ment thereof brings the stop 74 into engagement with the stop 75 to limit the rearward movement of the selector 68 and consequently to limit the movement of the ribbon vibrator and to prevent overthrow of the ribbon. When the selector 68 is shifted to its upper position with the rivet 73 in engagement with the shoulder 67, the rearward movement of the selector brings the tail 65 on the lower end of the arm 63 into engagement with the stop 75 and thus limitsthe movement of the vibrator to prevent overthrow of the ribbon.

I am aware that the particular structure which I have here shown is susceptible of considerable variation Without departing from the spirit of my invention and, theremenace fore, I do not Wish to be restricted to the same. I have found, however, that this form is to be preferred and, therefore, I desire to claim the same, specifically as well as broadly, as indicated by my appended claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1 In a typewriting machine, the combination of a ribbon vibrator, a vibrator lever pivoted in the frame of the machine and connected to said vibrator; a bell crank lever pivoted in the frame of the machine and having a forwardly projecting arm engaging the rearwardly extending arm of said vibrator lever and a downwardlydepending arm; a universal bar structure disposed to be actuated by the type bars as they approach printing position; and a selector actuated by said universal bar structure and adapted to engage the downwardly depending arm of the bell crank to actuate said ribbon vibrator; all coacting substantially as described and for the purpose specified.

2. In a typewriting machine, the combination of a shiftable type bar segment; a universal bar structure carried by said segment and disposed to be actuated by each of the type bars as it approaches printing position; a push pin carried by said universal bar structure; a bracket secured to the frame of the machine; a trip pin slidably mounted in said bracket and provided with a broad head engageable by said push pin in all positions of the type bar segment; a ribbon vibrating lever; a selector extending behind said trip pin head and provided with a stop; a stop on said bracket; said ribbon vibrating lever being provided with an arm extending behind said trip pin head and engageable by said selector, said arm being provided with a stop; and means for shifting said selector to bring the engaging portion thereof in line with different portions of said arm; said stop on said bracket being so disposed as to be engaged by either the stop on the selector or the stop on said arm depending upon the position'of said selector; all coacting substantially as described and for the purpose specified.

In a typewriting machine, the combina tion with a plurality of type bars; of a universal bar structure disposed to be actuated by each of said type bars as it approaches printing position; a selector actuated by said universal bar structure; a ribbon vibrating lever having an arm engageable by said selector; means for shifting said selector so as to engage said arm at different distances from the fulcrum of said lever; a fixed stop; a stop on said selector adapted to engage said fixed stop when the selector in one position a stop on said arm adapt to en age said fixed stop when said selector is in another position, all coacting substantially as described and for the purpose specified.

4, In a typewriting machine, the combination with a plurality of type bars; of a uni versal bar structure disposed to be actuated by each of said type bars as it approaches printing position; a selectoractuated by said universal bar structure; a ribbon vibrating lever having an arm eng'ageable by said selector; means for shifting said se lect-or so as to engage said arm at different distances from the fulcrum of said lever; a fixed stop; a stop on said selector adapted to engage said fixed stop when the selector is in one position, all coacting substantially as described and for the purpose specified.

5. In a typewriting machine, the combination with a plurality of type bars; of a universal bar structure disposed to be actuated by each of said type bars as it approaches printing position; a selector actuated by said universal bar structure; a ribbon vi brating lever having an arm engageable by said selector; means for shifting said selector so as to engage said arm at different distances from the fulcrum of said lever; a fixed stop; a stop on said arm adapted to engage said fixed stop when said selector is in one position; all coacting substantially as described and for the purpose specified.

6. In a typewriting machine, the combination of a shiftable type bar segment; a universal bar structure carried thereby and disposed to be actuated by each of the type bars as it approaches printing position; a trip pin slidably mounted in the frame and havin a broad head en a eabl'e b said unib b D versal bar structure in all positions of the type bar segment; and a selector enga ing the rear face of said trip pin head and shiftable relative thereto and adapted to actuate ribbon vibrating mechanism; all coasting substantially as described and for the purpose specified.

7. In a typewriting machine, the combination with a ribbon vibrating lever of means for actuating said ribbon vibrating lever comprising a link, a bell crank pivoted to the frame and having a forwardly projecting arm carrying a key, a downwardly depending arm connected to the forward end of said link, and a rearwardly ext-ending arm carrying a pin a Ushaped spring having one end secured to the frame of the machine and the other connected to the rear end of said rearwardly extending arm; a second bell crank pivotally mounted on said frame and having a forwardly projecting arm provided with a key. and a dowmvardly extending arm having a triangular openinr there in one edge of said opening bein concave; the pin carried by said first named bell crank beingd,u-z;msed in said triangular (queuing in. contact with the edge tin-wot; a I.

, means for actuatin pin carried by the lower end of said downwardly extending arm; a U-shaped sprin fixed at one end to the frame and connected at the other end to said pin; and a lever pivotally mounted on the frame, having a key at its forwardend and provided with a slot in which said first named in is disposed; all coacting substantially as described and for the purpose specified.

8. In a typewriting machine, the combination with a ribbon vibrating lever, of said ribbon vibrating lever comprising a llnk, a bell crank pivoted to the frame and having a forwardly projecting arm carrying a key, a downwardly depending arm connected to the forward end of said link, and a rearwardly extending arm carrying a pin; a second bell crank pivotally mounted on said frame'and having a forwardly projecting arm provided with a key and a downwardly extending arm having a triangular opening therein, one edge of said opening being slightly concave; the pin carried by said first bell crank being disposed in said triangular opening in contact with the ed e thereof; a lever pivotally mounted on the frame having a key at its forward end and provided with a slot in which said pin is disposed; and spring means for holding said levers in the position to which they are brought by the depression of one of said keys, all coacting substantially as described and for the purpose specified.

9. In a typewriting machine, the combination with a 'ribbon vibrating lever, of means for actuatin said ribbon vibrating lever comprising a link, a bell crank pivoted to the frame and having a forwardly projecting arm carrying a key, a downwardly depending arm connected to the forward end of said link, and a rearwardly extending arm carrying a pin; a second bell crank pivotally mounted on said frame and having a forwardly projecting arm provided with a key and a downwardly extending arm having a triangular opening therein; the pin carried by said first bell crank being disposed in said triangular opening in contact with the edge thereof; a lever pivotally mounted on the frame having a key at its forward end and provided with a slot in which said pin is disposed; and spring means for holding said levers in the position to which they are brought by the depression of one of said keys, all coacting substantially as described and for the purpose specified.

10. In a typewriting machine, the combination with a ribbon vibrating lever, of means for actuatin said ribbon vibrating lever comprising a link, a bell crank pivoted to the frame and having a forwardly projecting arm carrying a key, a downwardly depending arm connected to the forward end of said link, and a rearwardly extending arm carrying a pin; a second bell crank pivotally mounted on said frame and having a forwardly projecting arm provided with a key and a downwardly extending arm having a triangular opening therein; the pin carried by said first bell crank being disposed in said triangular opening in contact with the edge thereof; a lever pivotally mounted on the frame having a key at its forward end and provided with a slot in which said pin is disposed; all coacting substantially as described and for the purpose specifie 11. In a typewriting machine, the combination with a ribbon vibrating lever, of means for actuating said ribbon vibrating lever comprising a link, three levers pivotally mounted on the frame; connections from said levers to said link whereby on the depression of anyone of said levers said selector is shifted to one vof three predetermined positions; and means whereby on the depression of anyone of said levers, the lever last depressed is returned to normal position, all coacting substantially as described and for the purpose specified.

12. In a typewriting machine, the combination with a ribbon vibrating lever, of means for actuating said ribbon vibrating lever comprising a link, three levers pivotally mounted on the frame; connections from said levers to said link whereby on the depression of anyone of said levers said selector is shifted to one of three predetermined positions; all coacting substantially as described and for the purpose specified.

13. In a typewriting machine, the combination with a plurality 'of type bars; of a universal bar structure disposed to be actuated by said type bars as they approach printing position; a selector actuated by said universal bar structure; a ribbon vibrating lever having an arm engageable by said selector to actuate the lever; and means for shifting said selector to engage said arm at different distances from the fulcrum of said lever, comprising an arm pivotally mounted on the frame, said selector being pivotally mounted on said arm; a second arm secured to said first arm and extending at an angle thereto; a link connected to said second arm means for reciprocating said link to shift said selector to anyone of a predetermined number of positions; and means for holding said link inthe position to which it has been shifted, all coacting substantially as described and for the purpose specified.

14. In a typewriting machine, the combination with a plurality of type bars; of a universal bar structure disposed to be actuated by said type bars as they approach printing position; a selector actuated by said universal bar structure; a ribbon vibrating lever having an arm engageable by said selector to actuate the lever; and means for shifting said selector to engage said arm at different distances from the fulcrum of said lever, comprising an arm pivotally mounted on the frame, said selector being pivotally mounted on said arm; a second arm secured to said first arm and extending at an angle thereto; a link connected; to said second arm; means for reciprocating said link to shift said selector to anyone of a the purpose specified.

In witness whereof, I have hereunto set 15 my hand and seal in the presence of two Witnesses.

WILLIAM R. FOX.

Witnesses:

LILLIAN THUas'roN, HENRIETTA L. TERMEER. 

